208128795

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{68351}}^1$

素因数の和:68395

約数の個数: 32

約数和(自身を含む): 393707520

約数和(自身を除く): 185578725

約数列:

[1, 3, 5, 7, 15, 21, 29, 35, 87, 105, 145, 203, 435, 609, 1015, 3045, 68351, 205053, 341755, 478457, 1025265, 1435371, 1982179, 2392285, 5946537, 7176855, 9910895, 13875253, 29732685, 41625759, 69376265, 208128795]

約数ペア:

[(1, 208128795), (3, 69376265), (5, 41625759), (7, 29732685), (15, 13875253), (21, 9910895), (29, 7176855), (35, 5946537), (87, 2392285), (105, 1982179), (145, 1435371), (203, 1025265), (435, 478457), (609, 341755), (1015, 205053), (3045, 68351)]